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| Mirrors > Home > ILE Home > Th. List > 2ecoptocl | Unicode version | ||
| Description: Implicit substitution of classes for equivalence classes of ordered pairs. (Contributed by NM, 23-Jul-1995.) |
| Ref | Expression |
|---|---|
| 2ecoptocl.1 |
|
| 2ecoptocl.2 |
|
| 2ecoptocl.3 |
|
| 2ecoptocl.4 |
|
| Ref | Expression |
|---|---|
| 2ecoptocl |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2ecoptocl.1 |
. . 3
| |
| 2 | 2ecoptocl.3 |
. . . 4
| |
| 3 | 2 | imbi2d 230 |
. . 3
|
| 4 | 2ecoptocl.2 |
. . . . . 6
| |
| 5 | 4 | imbi2d 230 |
. . . . 5
|
| 6 | 2ecoptocl.4 |
. . . . . 6
| |
| 7 | 6 | ex 115 |
. . . . 5
|
| 8 | 1, 5, 7 | ecoptocl 6900 |
. . . 4
|
| 9 | 8 | com12 30 |
. . 3
|
| 10 | 1, 3, 9 | ecoptocl 6900 |
. 2
|
| 11 | 10 | impcom 125 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-br 4132 df-opab 4194 df-xp 4782 df-cnv 4784 df-dm 4786 df-rn 4787 df-res 4788 df-ima 4789 df-ec 6813 df-qs 6817 |
| This theorem is used by: 3ecoptocl 6902 ecovcom 6920 ecovicom 6921 addclnq 7748 mulclnq 7749 nqtri3or 7769 ltexnqq 7781 addclnq0 7824 mulclnq0 7825 distrnq0 7832 mulcomnq0 7833 addassnq0 7835 addclsr 8126 mulclsr 8127 mulgt0sr 8151 aptisr 8152 |
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